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TSM121 Scheda tecnica(PDF) 4 Page - STMicroelectronics

Il numero della parte TSM121
Spiegazioni elettronici  SINGLE CHIP PWM & HOUSEKEEPING IC FOR HALF BRIDGE SMPS
PDF  12 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TSM121 Scheda tecnica(HTML) 4 Page - STMicroelectronics

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TSM121
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ELECTRICAL CHARACTERISTICS
Tamb = 25°C and Vcc = 17V (unless otherwise
specified)
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
Total Current Consumption
Icc
Total Supply Current
7
12
mA
HOUSEKEEPING SECTION
Voltage Reference (Vref1)
Vref1
Internal Voltage Reference
2.5
V
Over Current, Over Voltage and Under Voltage Protection
Vcs33
Over Current Sense Threshold 3.3V
46.5
50
53.5
mV
Vcs5
Over Current Sense Threshold 5V
46.5
50
53.5
mV
Vcs12
Over Current Sense Threshold 12V
60.5
65
69.5
mV
Vov33
Over Voltage Sense 3.3V
3.8
4
4.2
V
Vov5
Over Voltage Sense 5V
5.8
6.1
6.4
V
Vov12
Over Voltage Sense12V
13.4
14.2
15
V
Vuv33
Under Voltage Sense 3.3V
2.1
2.3
2.5
V
Vuv5
Under Voltage Sense 5V
3.7
4
4.3
V
Vuv12
Under Voltage Sense 12V
9.2
10
10.8
V
Vep
Extra Over voltage Protection Threshold
1.25
V
Tfault
Fault Delay Before Latching
Internally Fixed Delay
150
µs
Current Surge Blanking
Vsur
Threshold Voltage
2.5
V
Tsur
Current Surge blank
Rsur = 33k
Ω, Csur = 4.7µF21
ms
Vsurth
Surge detection clamp voltage
6
V
Under Voltage Blanking During Power Up
Tuv
Under Voltage Blanking During Power
Up (Vcc rise)
Cuv = 2.2
µF
100
300
500
ms
Thuv
Blanking Threshold
2.5
V
Power Good (PG)
Vpgth
Power Good Voltage Threshold
2.5
V
Vpghyst Power Good Voltage Threshold
Hysteresis
150
mV
Vpgol
Low Output Open Collector Saturation
Voltage
Collector Current = 15mA
0.4
V
Ipgoh
High Output Open Collector Leakage
Current
PG Output = 5V
1
µA
Tpgr
Power Good Output Rise Time
Load Capacitor = 100pF
1
µs
Tpgf
Power Good Output Fall Time
Load Capacitor = 100pF
1
µs
Tpg
Power Good Adjustable Delay
Load Capacitor Cpg=2.2
µF
100
300
500
ms
PIth
Power Input Detection Threshold
1.25
V
Remote Control (REM)
Vremth
Remote ON/OFF Input Voltage
Threshold
0.7
0.8
1
V
Vremih
High Input Remote Voltage
4.8
5
V
Iremil
Low Input Remote Saturation Current
0.5
mA
Trem1
Remote Adjustable Delay ON to OFF
Load Capacitor
Crem=0.1
µF
40
50
60
ms



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